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ANDREW MARK ALLEN M.D.
NPI 1891759809
Internal Medicine in Birmingham, AL

Active since April 14, 2006PECOS EnrolledAccepts Medicare Assignment
125 20TH ST S, BIRMINGHAM, AL 35233(205) 801-5251 Get Directions Write a Review

NPPES record last updated: January 31, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Andrew Mark Allen M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ANDREW MARK ALLEN M.D. (NPI 1891759809) is an individual internal medicine provider in Birmingham, Alabama, licensed in Alabama (14635) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Birmingham, and is a graduate of University Of Alabama School Of Medicine (1988).

NPPES Registry Identity

NPI1891759809
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameANDREW MARK ALLENCredential: M.D.
Location Address125 20TH ST SBirmingham, AL 35233-2019
Mailing AddressPo Box 55310Birmingham, AL 35255-5310 · (205) 731-9701
Phone(205) 801-5251
Sole ProprietorNo
Medical School CMSUniversity Of Alabama School Of MedicineGraduated 1988
Enumeration DateApril 14, 2006
Last NPPES UpdateJanuary 31, 2024
✔ NPI 1891759809 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in AL · 14635
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedEmergency MedicineTaxonomy 207P00000X · License 14635 (AL)
125 20TH ST S, Birmingham, AL 35233
Open in Google Maps ↗

Secondary Practice Location 1

Location 12000 6th Ave SBirmingham, AL 35233-2110 · Phone (205) 801-5251 · Fax (205) 801-5252

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter of Alabama, Ambetter of Tennessee and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Andrew Mark Allen M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1456342096
PECOS Enrollment IDI20040521000321
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Andrew Allen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of Alabama Health Services Foundation, PC
0.3 mi
Ambulatory Surgical
2000 6TH AVE SOUTH
Birmingham, AL 35233
  • Reassigned Medicare billing, Alabama enrollment
  • 4,494 clinicians in this Medicare group
NPI 1124213376 (205) 801-8000
Trinity Emergency Physicians, LLC
7.1 mi
Emergency Medicine
3690 GRANDVIEW PKWY
Birmingham, AL 35243
  • Reassigned Medicare billing, Alabama enrollment
  • 96 clinicians in this Medicare group
NPI 1487669016 (205) 971-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
36 services36 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
23 services22 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
18 services14 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 35233 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$122.31 typical visit price
range $52.65 – $161.63
Typical copayment $30.57 (range $13.16 – $40.40)
Most-billed visit code 99204
Established Patient
$93.72 typical visit price
range $16.56 – $131.65
Typical copayment $23.43 (range $4.14 – $32.91)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KIMBERLY CORNELIUS-PEACE MD
Family Medicine
125 20TH ST S
BIRMINGHAM, AL 35233
Jefferson County (205) 801-5251
MAUREEN LEFEVRE ALLEN P.A.-C
Physician Assistant
125 20TH ST S, SUITE 103
BIRMINGHAM, AL 35233
Jefferson County (205) 801-5251

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Andrew Allen's NPI number?

The NPI number for Andrew Allen is 1891759809. It was assigned to this individual provider in the NPPES registry on April 14, 2006.

Where is Andrew Allen located?

Andrew Allen practices at 125 20th St S, Birmingham, AL 35233. The listed phone number is (205) 801-5251.

What is Andrew Allen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Andrew Allen enrolled in Medicare?

Yes. Andrew Allen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Andrew Allen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Allen reassigns Medicare benefits to 2 organizations: University Of Alabama Health Services Foundation, PC (Birmingham, AL) and Trinity Emergency Physicians, LLC (Birmingham, AL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Andrew Allen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Andrew Allen accept?

Health plans from Ambetter Health, Ambetter of Alabama, Ambetter of Tennessee and Blue Cross and Blue Shield of Alabama list Andrew Allen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Andrew Allen was last updated on January 31, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.